William be ad way blackball



(ModeL) W. B. BLACKHALL.

REMOVABLE BOOK COVER.

No, 283,853. Patented Aug. 28, 1883.

287.3. A Kay- 2.

NITED STATES arnnr FFIDE.

WILLIAM BRADWAY BLAOKHALL, OF TORONTO, ONTARIO, CANADA- REMOVABLE BOOK COVER.

SPECIFICATION forming part of Letters Patent No. 283,853, dated August 28, 1883. Application filed July 3, 1882. Renewed July 1883. (ModeL) To all whom it'may concern Be it known that I, WILLIAM BRADWAY BLAOKHALL, of the city of Toronto, in the county of York, in the Province of Ontario,

5 Canada, (bookbinder,) have invented certain new and useful Improvements in Removable Book-Covers; and I do hereby declare that the following is a full, clear, and exact description of the same.

My invention relates chiefly to that class of books which are carried in the pocket as memorandum books or used on the counter as check-books, but is applicable to books of a larger size by using two or more holders in one book, instead of one holder which is sufficient for the ordinary-sized book for the pocket or the counter.

The object of my invention is to produce a book that will be. suitable for such purposes, as hereinbefore referred to, and be produced at a cost that will place it within the reach of many who would not otherwise use such books.

It consists in constructing the book and the cover entirely separate and distinct from each other, the cover being complete in itself as a cover and the-book complete in itself as a book. The cover is made with the view of wearing out quite a number of books, the mode of binding the book and of securing the book to the cover being the chief feature of my invention, which I will now proceed to describe.

I take a piece of suitable metallic plate and make it of a proper form for entering freely into a sheath prepared therefor in the inside of the lower cover, as hereinafter more particularly described, which metallic plate I call a holder, and construct the same with two arms, which pass through the stub of the book, and are clinched on the upper side, thereby thoroughly securing the holder to the book, and also binding the same, and which holder being also constructed with a prong on the lower end, so that, when the holder is pushed down, the sheath passes out of the sheath through an orifice prepared therefor, and is folded back over the edge of the orifice,

and, forming a clinch, prevents the book be ing removed from the cover until the prong is straightened,when, by drawing the holder out of the sheath, the prong retires inside the said sheath and allows the holder to be withdrawn from the same. By means of the clinched prong the book is more thoroughly secured to the cover, and is in every way equal to more eXpensively-bound books.

In the accompanying drawings, Figure 1 is a perspective planview of my book, with its cover A lying open and flat upon its back, and the book B laid upon the same, and showing the metallic arms d (l clinched upon the stub B. Fig. 2 is an inside View of cover A, showing the mouth of the sheath 0 constructed therein, also the form of the same, by the dotted lines 0 0 c and orifice C. Fig. 3 is a longitudinal sectional edge view, showing the cover A, book B, and stub B, and one of the arms d cl, also the sheath 0, which is occupied by the blade D of the holder D, the prong D of which is turned up and clinched, so curing the book more thoroughly to the cover. Fig. i is an edge view of the book B, with stub .13 and holder D secured thereto by the arms (1 d, one of which only is seen in this view. Fig. 5 is an end view of holder D, and showing the arms (1 (Z in the position as when clinched on the face of the stub of the'book. Fig. 6 is a face view of holder D, showing the blade of the same, D, and the arms d d cut out of the plate at a point below the upper edge thereof, and the prong D. Fig. 7 is an edge view of the same, showing one of the arms (Z d in an unclinched position. Fig. 8 is an end view of holder D, and showing the arms (Z d in the position as when clinched on the face of the stub of the book. Fig. 9 is a face View of holder D, showing the arms d d in the position as when clinched on the face of the book and the prong D. Fig. 10 is an edge view of the same, showing one of the arms (Z d in an unclinched position. Fig. 11 is a face view of holder D, with arms (1 d unclinched, showing also prong D. Figs. 6,

9, and 11 are modifications of the same device.

It may be seen from these drawings of holder B that other modifications may be made; but

if constructed With the erms d d, the blade D, tion with a hook, B, with a metallic holder,

and the prong 0, they would be equivalents D, having arms (Z d, and a prong, D, as and I0 to my forms, as shown and described. for the purposes set forth.

Having thus described my invention, I I

I WILLIAM BRADWAY BLAOKHALL. 5 -cla1m A cover, A, for a memorandum or check- Witnesses: book, constructed with a sheath, 0, and ori- WILLIAM GILL, fice O, as specified and described, in combina- WVILLIAM KEENAN. 

